Elexhere

Easily Replaceable USB-C Port Spawned By EU Laws | Hackadayhttps://hackaday.com/2026/02/26/easily-replaceable-usb-c-port-spawned-by-eu-laws/

Usb-c

The USB-C port has become a defacto connectivity standard for modern devices, largely supplanting the ugly mess of barrel jacks and micro USB connectors that once cursed us. While their reliability…

Stop Ironing 3D Prints | Hackadayhttps://hackaday.com/2026/02/25/stop-ironing-3d-prints/

3dprint

If you want smooth top surfaces on your 3D printed parts, a common technique is to turn on ironing in your slicer. This causes the head to drag through the top of the part, emitting a small amount …

Bringing Flip-Dot Displays Into the 21st Century - Hackster.iohttps://www.hackster.io/news/bringing-flip-dot-displays-into-the-21st-century-4cbc186d6f35

Display

Unlock the magic of vintage flip-dot displays with this modern hardware hack that brings retro mechanical pixels back to life.

X-Ray A PCB Virtually | Hackadayhttps://hackaday.com/2026/02/23/x-ray-a-pcb-virtually/

Pcb
Reverse

If you want to reverse engineer a PC board, you could do worse than X-ray it. But thanks to [Philip Giacalone], you could just take a photo, load it into PCB Tracer, and annotate the images. You c…

sylverb/game-and-watch-retro-go-sdhttps://github.com/sylverb/game-and-watch-retro-go-sd?tab=readme-ov-file#pre-modded-options

Contribute to sylverb/game-and-watch-retro-go-sd development by creating an account on GitHub.

Scanning Table For The Professional Maker | Hackadayhttps://hackaday.com/2026/02/10/scanning-table-for-the-professional-maker/

Sometimes the simplest objects need some overthinking. This is exactly what [Chris Borge] realized when using his 3D scanner and finding that the included rotation table left quite a bit to be desi…

A DIY Retro-Modern Alarm Clock for Under $10 - Hackster.iohttps://www.hackster.io/news/a-diy-retro-modern-alarm-clock-for-under-10-4e4e972345d8

Build your own ESPclock with a Wemos D1 mini and a 3D-printed case for a customizable, budget-friendly DIY alarm clock.

A CNC Dock for the Etch A Sketch - Hackster.iohttps://www.hackster.io/news/a-cnc-dock-for-the-etch-a-sketch-e4f8bf24581e

Game

Engineer Nikodem Bartnik built the "CNC A Sketch," a robotic dock using a Raspberry Pi Pico to turn images into perfect Etch A Sketch art.

The Quickest and Easiest Way to Make Neat 3D Puzzles - Hackster.iohttps://www.hackster.io/news/the-quickest-and-easiest-way-to-make-neat-3d-puzzles-6fbd48edc8ce

Lego
Laser

Instructables user the_real_harvey came up with a very quick and easy method for making 3D puzzles.

Using 3D Printing And Copper Tape To Make PCBs | Hackadayhttps://hackaday.com/2026/01/28/using-3d-printing-and-copper-tape-to-make-pcbs/

In a recent video [QWZ Labs] demonstrates an interesting technique to use 3D printing to make creating custom PCBs rather straightforward even if all you have is a 3D printer and a roll of copper t…

The Arduino UNO, Now in Extra-Large - Hackster.iohttps://www.hackster.io/news/the-arduino-uno-now-in-extra-large-7a15236d9e8a

Arduino
Big

UncleStem just built a massive, fully functional Arduino UNO that is scaled up seven times its original size.

One-Dimensional Space Invaders Looks Surprisingly Fun - Hackster.iohttps://www.hackster.io/news/one-dimensional-space-invaders-looks-surprisingly-fun-a2f1711c9ab7

Led
Game

This 1D RGB Invaders game actually seems like more fun than regular old Space Invaders.

Audio Reactive WLED LED Lamp (ESP32 + WS2812B + 3D Printing) : 16 Steps (with Pictures) - Instructableshttps://www.instructables.com/Audio-Reactive-WLED-LED-Lamp-ESP32-WS2812B-3D-Prin/

Led
Esp32

Audio Reactive WLED LED Lamp (ESP32 + WS2812B + 3D Printing): In this project we build an Audio Reactive LED lamp inspired by the WLED logo, using an ESP32 and a 5V WS2812B strip (96 LEDs). The lamp is fully 3D printed and designed for clean, hidden internal wiring. You can either use the custom PCB with an IN…

The Perfect Minimalist LED Clock - Hackster.iohttps://www.hackster.io/news/the-perfect-minimalist-led-clock-49a4e4440518

ESPTimeCast is a hackable, Wi-Fi-connected LED matrix clock and weather display powered by an ESP32 or ESP8266 microcontroller.

Build Your Own Pro-Grade 3D Scanner Without the Commercial Price Tag - Hackster.iohttps://www.hackster.io/news/build-your-own-pro-grade-3d-scanner-without-the-commercial-price-tag-6964b9c00d30

With a Raspberry Pi and a used LiDAR sensor, an engineer built a pro-grade 3D mapping system for a fraction of the commercial cost.

The (likely?) cheapest home-made Michelson interferometerhttps://guille.site/posts/3d-printed-michelson/

Glen Akins' Tiny Traffic Lights Pack a Full-Color Display Into Each Aspect — with Wi-Fi Support, Too - Hackster.iohttps://www.hackster.io/news/glen-akins-tiny-traffic-lights-pack-a-full-color-display-into-each-aspect-with-wi-fi-support-too-e23d30c50317

This 3D-printed miniature traffic light set isn't your standard introductory electronics project!

Optimizing A Desktop, 3D Printed Wind Tunnel | Hackadayhttps://hackaday.com/2026/01/12/optimizing-a-desktop-3d-printed-wind-tunnel/

You’ve heard of wind tunnels– get some airflow going over a thingy, put some some smoke on, and voila! Flow visualization. How hard could it be? Well, as always, the devil is in the det…

Every Page in This Book Is a Functional PCB - Hackster.iohttps://www.hackster.io/news/every-page-in-this-book-is-a-functional-pcb-7feb79f02d5b

Reference Circuits is a PCB-based book where every page is a live circuit you can experiment with to learn about electronics.

Reverse-Engineering The Tamagotchi IR Connection | Hackadayhttps://hackaday.com/2026/01/10/reverse-engineering-the-tamagotchi-ir-connection/

The Tamagotchi Connection is a series of Tamagotchi toys that took the original portable pet concept and mixed things up with a wireless connection, which allowed you to interact with the pets of o…